How to export IFC?

edited April 24 in General

I am not getting any data out exporting some geometry to IFC. Probably lacks mapping. What is the procedure?

Comments

  • First, you'd need to create a new IFC project. Your objects then need to be placed in the spatial hierarchy (e.g. site, building, etc) and classified (e.g. IfcWall, IfcSlab, etc). Then you can add extra metadata using property sets in the object panel.

  • Thanks Moult!
    New project, brings in hierarchy. I figured it would be logical place to put this mesh from BlenderGIS under 'site'

    But how do i point out it is a ifc_terrain kind of object. I see the library here?

  • The wiki is not completely up to date, but I believe you can find many answers there:
    https://wiki.osarch.org/index.php?title=BlenderBIM_Add-on_for_building_and_exporting_an_IFC_model

    magicalcloud_75
  • To utilize the "Assign IFC Class" found under Scene > Building Information Modeling > IFC Categorization
    Where is it ..? Decribes a older version maybe?
    (using py310-win.zip )

  • Nothing here.


  • Also, if you go there, do you see an IFC attached to the Blender file?

  • It helps to if you can share the blender file, i can do a video to show you, specific to your project.

  • This is a little outdated, but mostly correct guide that may help for simple exports: https://blenderbim.org/blenderbim-tutorial.html

  • You are right. Need to set project first to appear. Now it writes data to ifc 72 MB but i don't have a visual. Probably need to find the right class etc.

  • @magicalcloud_75 said:
    You are right. Need to set project first to appear. Now it writes data to ifc 72 MB but i don't have a visual. Probably need to find the right class etc.

    Don't forget to set an IFC spatial container too, else your IFC element won't show up.

  • "Don't forget to set an IFC spatial container too, else your IFC element won't show up"
    Sorry but i don't know understand IFC that much
    Pushed these buttons.

    Creates hyrachie, which makes sense to me.

    Butr the result is disappointing some big filesize IFC with nada nothing to display :(

    Can you share a succesful ifc case which contains a groundlevel as site ?

  • edited May 19

    @magicalcloud_75 said:
    "Don't forget to set an IFC spatial container too, else your IFC element won't show up"
    Sorry but i don't know understand IFC that much
    Pushed these buttons.

    Creates hyrachie, which makes sense to me.

    Butr the result is disappointing some big filesize IFC with nada nothing to display :(

    Can you share a succesful ifc case which contains a groundlevel as site ?

    Hi, I think this...
    should be here...
    so it is in the IFC file structure, I'm a novice too so I could be wrong :)

  • What you've done is technically correct, but you need to assign the site to the project. I agree it is annoying that it is not assigned by default. I will fix this default.

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